Exo
Active Member
Hello,
I've been working on a broken PC power supply and i've found a strange component wich i've never seen before.
It looks like a regular diode, but i don't think it is. It's marked 'B1' while all the diodes on the rest of the board are marked 'D'.
It sits in series with the incoming AC and the bridge rectifier - so basically, all the current going to the power supply has to pass trough it. Every time i plug the power cord in this part lights up for a second asif arcing inside. I do measure 340Volts on the main capacitor - so i don't think this part is the problem but i would like to know what it is.
It's the red circled component on the top. Click the picture for a larger one.
**broken link removed**
Thanks.
I've been working on a broken PC power supply and i've found a strange component wich i've never seen before.
It looks like a regular diode, but i don't think it is. It's marked 'B1' while all the diodes on the rest of the board are marked 'D'.
It sits in series with the incoming AC and the bridge rectifier - so basically, all the current going to the power supply has to pass trough it. Every time i plug the power cord in this part lights up for a second asif arcing inside. I do measure 340Volts on the main capacitor - so i don't think this part is the problem but i would like to know what it is.
It's the red circled component on the top. Click the picture for a larger one.
**broken link removed**
Thanks.